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通过对石英丝摩擦阻力的观察,论证了附于泥沙颗粒的薄膜水新的物理性质,明确了河底泥沙的受力情况,进而阐述了泥沙起动条件,并获得了计算公式.试验证明,这个公式不仅适用于沙石,而且也适用于粒径微小的黄土与黏土.文内并广泛地搜集了前人的试验数据以及一些野外观测数据,得到了理论曲线与实测数据极为符合的结果.
Through the observation of the frictional resistance of quartz wire, the new physical properties of the film water attached to the sediment particles are demonstrated, the force of sediment on the river bottom is clarified, and then the sediment starting conditions are expounded and the calculation formula is obtained. Prove that this formula not only applies to sand and stone, but also applies to the particle size of the loess and clay.This paper extensively collected previous experimental data and some field observations, the theoretical curve and the measured data are in good agreement result.